<div class="m-5 text-main-div">
    <ng-container *ngFor="let line of textLines">
        <pre *ngIf="line">{{line}}</pre>
        <div *ngIf="!line">
            <br />
        </div>
    </ng-container>
</div>
<div class="loading-shade" *ngIf="isLoading">
    <mat-spinner></mat-spinner>
</div>